Since this plugin depends on the save & edit functions of the Code block, we need to ensure that we're always

• Add @wordpress/block-library as a devDependency
• Add a test which simply compares the hashes of the files in the code directory with a given snapshot.
• Add a command which updates the snapshot.

In this way, whenever a change is made to the Code block and Dependabot updates the dependency, we'll automatically be alerted of a change that needs to be verified. If nothing needs to change, then the snapshot can be updated and committed with the dependency update PR.